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            <div><h3 class="title">
                <a name="asio.reference.transfer_all"></a><a class="link" href="transfer_all.html" title="transfer_all">transfer_all</a>
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    <p>
        <a class="indexterm" name="asio.indexterm.transfer_all"></a>
    </p>
    <p>
        Return a completion condition function object that indicates that a read
        or write operation should continue until all of the data has been transferred,
        or until an error occurs.
    </p>
    <pre class="programlisting"><span class="identifier">unspecified</span> <span class="identifier">transfer_all</span><span
            class="special">();</span>
</pre>
    <p>
        This function is used to create an object, of unspecified type, that meets
        CompletionCondition requirements.
    </p>
    <h5>
        <a name="asio.reference.transfer_all.h0"></a>
        <span><a name="asio.reference.transfer_all.example"></a></span><a class="link"
                                                                          href="transfer_all.html#asio.reference.transfer_all.example">Example</a>
    </h5>
    <p>
        Reading until a buffer is full:
    </p>
    <pre class="programlisting"><span class="identifier">boost</span><span class="special">::</span><span
            class="identifier">array</span><span class="special">&lt;</span><span class="keyword">char</span><span
            class="special">,</span> <span class="number">128</span><span class="special">&gt;</span> <span
            class="identifier">buf</span><span class="special">;</span>
<span class="identifier">asio</span><span class="special">::</span><span class="identifier">error_code</span> <span
                class="identifier">ec</span><span class="special">;</span>
<span class="identifier">std</span><span class="special">::</span><span class="identifier">size_t</span> <span
                class="identifier">n</span> <span class="special">=</span> <span class="identifier">asio</span><span
                class="special">::</span><span class="identifier">read</span><span class="special">(</span>
    <span class="identifier">sock</span><span class="special">,</span> <span class="identifier">asio</span><span
                class="special">::</span><span class="identifier">buffer</span><span class="special">(</span><span
                class="identifier">buf</span><span class="special">),</span>
    <span class="identifier">asio</span><span class="special">::</span><span class="identifier">transfer_all</span><span
                class="special">(),</span> <span class="identifier">ec</span><span class="special">);</span>
<span class="keyword">if</span> <span class="special">(</span><span class="identifier">ec</span><span
                class="special">)</span>
<span class="special">{</span>
  <span class="comment">// An error occurred.</span>
<span class="special">}</span>
<span class="keyword">else</span>
<span class="special">{</span>
  <span class="comment">// n == 128</span>
<span class="special">}</span>
</pre>
    <h5>
        <a name="asio.reference.transfer_all.h1"></a>
        <span><a name="asio.reference.transfer_all.requirements"></a></span><a class="link"
                                                                               href="transfer_all.html#asio.reference.transfer_all.requirements">Requirements</a>
    </h5>
    <p>
        <span class="emphasis"><em>Header: </em></span><code class="literal">asio/completion_condition.hpp</code>
    </p>
    <p>
        <span class="emphasis"><em>Convenience header: </em></span><code class="literal">asio.hpp</code>
    </p>
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                Distributed under the Boost Software License, Version 1.0. (See accompanying
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